Was going to post in AIBU but got scared. :)
We live in a semi-detatched house with a converted loft, so 3 floors. Back of house on ground floor is almost solid glass - essentially a wide conservatory.
Couldn't find any window cleaners for ages, but then a couple guys appeared and offered their services - DP agreed, and turns out they expect you to agree to have your windows done every couple months, which would cost us £7 for the front of the house, £15 to include the back. Sounded cheap so DP signed up.
So one day I was in (sick), and they ring the bell to say they've cleaned the front windows. The back ones are filthy so I ask them to do the back of the house, let them round the side, go back to bed, and under 5 minutes later see one guy wiping my bedroom window with a cloth. Less than 5 minutes after that they ring again to say they are done. Turns out they 'don't do' the top floor, but more importantly the windows aren't even wet!
I have no idea how much window-washing ought to cost, but surely there ought to be a bucket of water and a squeegee involved?! And it must take more than 10 minutes to get about 20 sq m of glass plus four other windows clean? They don't seem any cleaner than when the guys started. I did pay them but DP phoned to tell them not to bother coming back.
How much do you pay window cleaners, how often, and how long do they take?